Chapter 11AC–DC–AC Converters for Distributed Power Generation Systems
Marek Jasinski, Sebastian Stynski, Pawel Mlodzikowski and Mariusz Malinowski
Faculty of Electrical Engineering, Warsaw University of Technology, Warsaw, Poland
11.1 Introduction
Indirect AC–DC–AC converters consist of two connected voltage source converters (VSCs) as presented in Figure 11.1. The AC–DC–AC is a connection through a DC-link of two single-phase, three-phase, or multiphase AC circuits with different voltage amplitude , frequency , or phase angle . The major application of AC–DC–AC converters is in adjustable speed drives. However, recently, these converters have begun to play an increasingly important role in distributed power generation systems (DPGSs) and sustainable AC and DC grids.
Figure 11.1 AC–DC–AC indirect converter (a) general block scheme (b) photo of commercially available AC–DC–AC converters manufactured by TWERD type: MFC810ACR, (c) photo of commercially available AC–DC–AC converters manufactured by ABB type: PCS6000 [1 2]
There are several possibilities for an AC–DC–AC converter ...
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, frequency 
, or phase angle 
. The major application of AC–DC–AC converters is in adjustable speed drives. However, recently, these converters have begun to play an increasingly important role in distributed power generation systems (DPGSs) and sustainable AC and DC grids.